You are sorta right; if you are simply trying to dump, at times stuff will hang on the teeth.
I've personally found that setting the grapple down on the pile at nearly the same angle as above and dragging back, will drag most small stuff free of the teeth. Setting it down on the pile tends to push the small stuff up out of the teeth, so when backing up, ya back right out of whatever tangled mess ya got up front. Takes no time to master.
The tine design is one of the big reasons to go with EA, they are masterfully done. Aggressive enough to shred small roots, gusseting is done in a way that works with the tool rather than against it, and they're not bad about packing full of unwanted crap and carrying it around.